grabsamples.shp: Location of grab samples from inner continental shelf of North Carolina during U.S. Geological Survey research cruises 1999-045-FA, 2001-005-FA, 2002-013-FA, 2004-003-FA (geographic, WGS 84)

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2013
Title:
grabsamples.shp: Location of grab samples from inner continental shelf of North Carolina during U.S. Geological Survey research cruises 1999-045-FA, 2001-005-FA, 2002-013-FA, 2004-003-FA (geographic, WGS 84)
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2011-1015
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: <https://pubs.usgs.gov/of/2011/1015/data/samples/grabsamples.zip>
Online_Linkage: <https://pubs.usgs.gov/of/2011/1015/data_catalog.html>
Larger_Work_Citation:
Citation_Information:
Originator: E.R. Thieler
Originator: D.S. Foster
Originator: D.M. Mallinson
Originator: E.A. Himmelstoss
Originator: J.E. McNinch
Originator: J.H. List
Originator: E.S. Hammar-Klose
Publication_Date: 2013
Title:
Quaternary Geophysical Framework of the Northeastern North Carolina Coastal System
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2011-1015
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: <https://pubs.usgs.gov/of/2011/1015/>
Description:
Abstract:
The northeastern North Carolina coastal system, from False Cape, Virginia, to Cape Lookout, North Carolina, has been studied by a cooperative research program that mapped the Quaternary geologic framework of the estuaries, barrier islands, and inner continental shelf. This information provides a basis to understand the linkage between geologic framework, physical processes, and coastal evolution at time scales from storm events to millennia. The study area attracts significant tourism to its parks and beaches, contains a number of coastal communities, and supports a local fishing industry, all of which are impacted by coastal change. Knowledge derived from this research program can be used to mitigate hazards and facilitate effective management of this dynamic coastal system.
This regional mapping project produced spatial datasets of high-resolution geophysical (bathymetry, backscatter intensity, and seismic reflection) and sedimentary (core and grab-sample) data. The high-resolution geophysical data were collected during numerous surveys within the back-barrier estuarine system, along the barrier island complex, in the nearshore, and along the inner continental shelf. Sediment cores were taken on the mainland and along the barrier islands, and both cores and grab samples were taken on the inner shelf. Data collection was a collaborative effort between the U.S. Geological Survey (USGS) and several other institutions including East Carolina University (ECU), the North Carolina Geological Survey, and the Virginia Institute of Marine Science (VIMS).
The high-resolution geophysical data of the inner continental shelf were collected during six separate surveys conducted between 1999 and 2004 (four USGS surveys north of Cape Hatteras: 1999-045-FA, 2001-005-FA, 2002-012-FA, 2002-013-FA, and two USGS surveys south of Cape Hatteras: 2003-003-FA and 2004-003-FA) and cover more than 2600 square kilometers of the inner shelf. Single-beam bathymetry data were collected north of Cape Hatteras in 1999 using a Furuno fathometer. Swath bathymetry data were collected on all other inner shelf surveys using a SEA, Ltd. SwathPLUS 234-kHz bathymetric sonar. Chirp seismic data as well as sidescan-sonar data were collected with a Teledyne Benthos (Datasonics) SIS-1000 north of Cape Hatteras along with boomer seismic reflection data (cruises 1999-045-FA, 2001-005-FA, 2002-012-FA and 2002-013-FA). An Edgetech 512i was used to collect chirp seismic data south of Cape Hatteras (cruises 2003-003-FA and 2004-003-FA) along with a Klein 3000 sidescan-sonar system. Sediment samples were collected with a Van Veen grab sampler during four of the USGS surveys (1999-045-FA, 2001-005-FA, 2002-013-FA, and 2004-003-FA). Additional sediment core data along the inner shelf are provided from previously published studies.
A cooperative study, between the North Carolina Geological Survey and the Minerals Management Service (MMS cores), collected vibracores along the inner continental shelf offshore of Nags Head, Kill Devils Hills and Kitty Hawk, North Carolina in 1996. The U.S. Army Corps of Engineers collected vibracores along the inner shelf offshore of Dare County in August 1995 (NDC cores) and July-August 1995 (SNL cores). These cores are curated by the North Carolina Geological Survey and were used as part of the ground validation process in this study.
Nearshore geophysical and core data were collected by the Virginia Institute of Marine Science. The nearshore is defined here as the region between the 10-m isobath and the shoreline. High-resolution bathymetry, backscatter intensity, and chirp seismic data were collected between June 2002 and May 2004. Vibracore samples were collected in May and July 2005.
Shallow subsurface geophysical data were acquired along the Outer Banks barrier islands using a ground-penetrating radar (GPR) system. Data were collected by East Carolina University from 2002 to 2005. Rotasonic cores (OBX cores) from five drilling operations were collected from 2002 to 2006 by the North Carolina Geological Survey as part of the cooperative study with the USGS. These cores are distributed throughout the Outer Banks as well as the mainland.
The USGS collected seismic data for the Quaternary section within the Albemarle-Pamlico estuarine system between 2001 and 2004 during six surveys (2001-013-FA, 2002-015-FA, 2003-005-FA, 2003-042-FA, 2004-005-FA, and 2004-006-FA). These surveys used Geopulse Boomer and Knudsen Engineering Limited (KEL) 320BR Chirp systems, except cruise 2003-042-FA, which used an Edgetech 424 Chirp and a boomer system. The study area includes Albemarle Sound and selected tributary estuaries such as the South, Pungo, Alligator, and Pasquotank Rivers; Pamlico Sound and trunk estuaries including the Neuse and Pamlico Rivers; and back-barrier sounds including Currituck, Croatan, Roanoke, Core, and Bogue.
Purpose:
This ESRI point shapefile contains the locations of marine sediment samples collected by the U.S. Geological Survey along the inner continental shelf study area. It was produced to ground-truth (verify) topography and backscatter intensity of the seafloor.
Grain size analysis of these samples have been included in U.S. Geological Survey East-Coast Sediment Analysis Report published in 2005 (Open-File Report 2005-1001).
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19991007
Ending_Date: 20040709
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -76.473780
East_Bounding_Coordinate: -75.390440
North_Bounding_Coordinate: 36.615320
South_Bounding_Coordinate: 34.573001
Keywords:
Theme:
Theme_Keyword_Thesaurus: General
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: surficial sediments
Theme_Keyword: grain size analyses
Theme_Keyword: simple bottom descriptions
Theme_Keyword: grab sampler
Theme_Keyword: seafloor geology
Theme_Keyword: sedimentary dynamics
Theme_Keyword: sedimentary processes
Theme_Keyword: strataform
Theme_Keyword: particle-size analysis
Theme_Keyword: ESRI shapefile
Theme_Keyword: point data
Theme_Keyword: point shapefile
Theme_Keyword: Geographic Information System
Theme_Keyword: GIS
Theme_Keyword: sample location
Theme_Keyword: field activity serial number 1999-045-FA
Theme_Keyword: field activity serial number 2001-005-FA
Theme_Keyword: field activity serial number 2002-013-FA
Theme_Keyword: field activity serial number 2004-003-FA
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans and estuaries
Theme_Keyword: location
Theme_Keyword: geoscientificInformation
Place:
Place_Keyword_Thesaurus: General
Place_Keyword: U.S. Atlantic East Coast
Place_Keyword: east coast
Place_Keyword: Atlantic Margin
Place_Keyword: North Carolina
Place_Keyword: continental shelf
Place_Keyword: Cape Hatteras
Place_Keyword: North Carolina
Place_Keyword: Oregon Inlet
Place_Keyword: NC
Access_Constraints: None
Use_Constraints:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: E. Robert Thieler
Contact_Organization: U.S. Geological Survey
Contact_Position: Research Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508.548.8700 x2350
Contact_Facsimile_Telephone: 508.457.2310
Contact_Electronic_Mail_Address: rthieler@usgs.gov
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.4.1420
Cross_Reference:
Citation_Information:
Originator: Lawrence J. Poppe
Originator: S.J. Williams
Originator: V.F. Paskevich
Publication_Date: 2005
Title: ECSTDB2005 - USGS East Coast Sediment Texture Database (2005)
Edition: 2.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2005-1001
Publication_Information:
Publication_Place: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Other_Citation_Details:
Publication OFR2005-1001 supersedes previous editions of this publication.
Online_Linkage: <https://pubs.usgs.gov/of/2005/1001/>

Data_Quality_Information:
Logical_Consistency_Report:
No additional checks for topological consistency were performed on this data. Gaps in sequential sample numbers may exist.
Completeness_Report:
This is a subset of the USGS East Coast Sediment Texture database (2005) published as OFR 2005-1001. Only data from U.S. Geological Survey research cruises 1999-045-FA, 2001-005-FA, 2002-013-FA, and 2004-003-FA have been included.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Navigation was by DGPS; positional accuracy to less than 10 m, as reported in the USGS East Coast Sediment Texture Database (2005) Edition 2.0 report.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: L.J. Poppe
Originator: S.J. Williams
Originator: V.F. Paskevich
Publication_Date: 2005
Title: ECSTDB2005 - USGS East Coast Sediment Texture Database (2005)
Edition: 2.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2005-1001
Publication_Information:
Publication_Place: Woods Hole Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Larger_Work_Citation:
Citation_Information:
Other_Citation_Details:
Publication OFR2005-1001 supersedes previous editions of this publication.
Online_Linkage: <https://pubs.usgs.gov/of/2005/1001>
Type_of_Source_Media: disc
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2005
Source_Currentness_Reference: publication date
Source_Contribution:
The Excel spreadsheet document (ecstdb2005.xls) contains the accumulated results of the surficial sediment analysis collected and processed by the U.S. Geological Survey (USGS), Woods Hole Science Center (WHSC).
Process_Step:
Process_Description:
The surficial sediment data fields from the 2005 USGS East Coast Sediment Texture Database was accessed to generate a new Excel spreadsheet document containing only the data for sediment samples collected during USGS field activity numbers 1999-045-FA, 2001-005-FA, 2002-013-FA, and 2004-003-FA. Field headings that contained no information (such as DAY_COLL) were removed. The spreadsheet was then exported as a comma-delimited text file.
Source_Used_Citation_Abbreviation: ecstdb2005.xls
Process_Date: 20060622
Source_Produced_Citation_Abbreviation: grabsamples.txt
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Emily Himmelstoss
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508.548.8700 x2262
Contact_Facsimile_Telephone: 508.457.2310
Process_Step:
Process_Description:
The comma delimited source file was imported into ArcGIS as a point shapefile (geographic, WGS 84) by right-clicking on the file in ArcCatalog (v 9.1) and choosing "Create Feature Class" > "From XY table..." from the pop-up window.
Source_Used_Citation_Abbreviation: grabsamples.txt
Process_Date: 20060622
Source_Produced_Citation_Abbreviation: grabsamples.dbf
Source_Produced_Citation_Abbreviation: grabsamples.shp
Source_Produced_Citation_Abbreviation: grabsamples.shx
Source_Produced_Citation_Abbreviation: grabsamples.sbn
Source_Produced_Citation_Abbreviation: grabsamples.sbx
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Emily Himmelstoss
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2262
Contact_Facsimile_Telephone: 508-457-2310

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 202

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000001
Longitude_Resolution: 0.000001
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224
Vertical_Coordinate_System_Definition:
Depth_System_Definition:
Depth_Datum_Name: Local surface
Depth_Resolution: 1
Depth_Distance_Units: centimeters
Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: grabsamples
Entity_Type_Definition: Shapefile Attribute Table
Entity_Type_Definition_Source: ESRI
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: GROUP
Attribute_Definition: Number assigned to data based on source.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 3
Enumerated_Domain_Value_Definition:
samples analyzed by the USGS Branch of Atlantic Marine Geology Sediment Laboratory
Attribute:
Attribute_Label: DB_ID
Attribute_Definition:
Unique identification number generated in the sedimentation laboratory of the USGS's Woods Hole Science Center. For samples analyzed after 1980 this identifier consists of 2 characters and 3 numerics (e.g. AS114). For samples analyzed prior to 1980, this identifier consists of 4 numerics possibly followed by as many as 2 characters.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute:
Attribute_Label: FIELD_NO
Attribute_Definition:
Sample name or number as assigned in the field by the Chief Scientist
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute:
Attribute_Label: PROJECT
Attribute_Definition:
Name of project or project number under which samples were taken or data generated; sometimes project name indicates a more specific area
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 21.
Attribute:
Attribute_Label: CRUISE_ID
Attribute_Definition:
Name or number of cruise on which sample collected. Historically cruise identifiers were a combination of ship name, year of cruise and cruise leg. In more recent years, cruise identifier is a sequential serial number assigned to field activities within a specific year.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 21.
Attribute:
Attribute_Label: CONTACT
Attribute_Definition:
Name of Principal Investigator or Chief Scientist responsible for data collection (usually first initial and last name)
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 12.
Attribute:
Attribute_Label: AREA
Attribute_Definition:
General geographic area of data collection. Name is general enough to easily locate area on a state map.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 33.
Attribute:
Attribute_Label: LATITUDE
Attribute_Definition:
Latitude coordinate, in decimal-degrees, of sample location. South latitude recorded as negative values.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 34.573001
Range_Domain_Maximum: 36.615320
Attribute_Units_of_Measure: signed decimal degrees
Attribute_Measurement_Resolution: .00000001
Attribute:
Attribute_Label: LONGITUDE
Attribute_Definition:
Longitude coordinate, in decimal degrees, of sample location. West longitude is recorded as negative values.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -76.473780
Range_Domain_Maximum: -75.39044
Attribute_Units_of_Measure: signed decimal degrees
Attribute_Measurement_Resolution: .00000001
Attribute:
Attribute_Label: DEPTH_M
Attribute_Definition:
Measured depth of water overlying sediment at sample time, not corrected for tides, in meters. Some samples contain zeros, indicating that depth of sample is unknown.
Attribute_Definition_Source: USGS East coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 9.48
Range_Domain_Maximum: 23.86
Attribute_Units_of_Measure: meters
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: B_DEPTH
Attribute_Definition:
Bottom depth of the sample below the sediment-water interface, in centimeters
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 2
Attribute_Units_of_Measure: centimeters
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: DEVICE
Attribute_Definition: Device used to collect the sample.
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 28.
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: VAN VEEN GRAB
Enumerated_Domain_Value_Definition: sample collected with Van Veen grab sampler
Attribute:
Attribute_Label: MONTH_COLL
Attribute_Definition: Calendar month sample collected
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 7
Range_Domain_Maximum: 10
Attribute_Units_of_Measure: month of year
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: YEAR_COLL
Attribute_Definition: Calendar year sample collected
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1999
Range_Domain_Maximum: 2004
Attribute_Units_of_Measure: year
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: MONTH_ANAL
Attribute_Definition: Calendar month sample analyzed
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 10
Attribute_Units_of_Measure: month of year
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: DAY_ANAL
Attribute_Definition: Calendar day sample analyzed
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 14
Range_Domain_Maximum: 28
Attribute_Units_of_Measure: day of month
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: YEAR_ANAL
Attribute_Definition: Calendar year sample analyzed
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2000
Range_Domain_Maximum: 2004
Attribute_Units_of_Measure: year
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: WEIGHT
Attribute_Definition: Weight of dry sample in grams
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 27.357900
Range_Domain_Maximum: 565.642500
Attribute_Units_of_Measure: grams
Attribute_Measurement_Resolution: .0001
Attribute:
Attribute_Label: GRAVEL_PCT
Attribute_Definition:
Gravel content in percent dry weight of the sample (particles with nominal diameters greater than 2 mm; -1 phi and larger)
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 81.92
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: SAND_PCT
Attribute_Definition:
Sand content in percent dry weight of the sample (particles with nominal diameters less than 2 mm, but greater than or equal to 0.0625 mm ; 0 phi through 4 phi )
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 14.25
Range_Domain_Maximum: 100
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: SILT_PCT
Attribute_Definition:
Silt content in percent dry weight of the sample (particles with nominal diameters less than 0.0625 mm, but greater than or equal to 0.004 mm; 5 phi through 8 phi , inclusive)
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 39.91
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: CLAY_PCT
Attribute_Definition:
Clay content in percent dry weight of the sample (particles with nominal diameters less than 0.004 mm; 9 phi and smaller)
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 41.74
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: CLASSIFICA
Attribute_Definition:
Sediment Classification - Sediment description based on a rigorous definition, usually Shepard, 1954
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 19.
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: GRAVEL
Enumerated_Domain_Value_Definition:
Sediment whose main phase (usually greater than 50 percent) is greater than 2 mm
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: GRAVELLY SEDIMENT
Enumerated_Domain_Value_Definition:
Sediment whose main phase is greater than 2 mm, but with significant other sediment
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: SAND
Enumerated_Domain_Value_Definition:
Sediment whose main phase is less than 2 mm, but greater than 0.062 mm
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: SAND SILT CLAY
Enumerated_Domain_Value_Definition:
sediment with significant (greater than 20%) sand, silt, and clay
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: SILTY CLAY
Enumerated_Domain_Value_Definition: Sediment whose main phase is clay but with significant silt
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: SILTY SAND
Enumerated_Domain_Value_Definition: Sediment whose main phase is sand, but with significant silt
Attribute:
Attribute_Label: MEDIAN
Attribute_Definition: Middle point in the grain size distribution in phi units
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -2.72
Range_Domain_Maximum: 7.56
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: MEAN
Attribute_Definition: Average value in the grain size distribution in phi units
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -2.64
Range_Domain_Maximum: 6.96
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: STDEV
Attribute_Definition:
Standard deviation (root mean square of the deviations) of the grain size distribution in phi units (sorting)
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.42
Range_Domain_Maximum: 3.74
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: SKEWNESS
Attribute_Definition:
Skewness (deviation from symmetrical form) of the grain size distribution in phi units
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -0.90
Range_Domain_Maximum: 4.19
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: KURTOSIS
Attribute_Definition:
Kurtosis (degree of curvature near the mode) of the grain size distribution in phi units
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -1.53
Range_Domain_Maximum: 81.19
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: MODE1CLASS
Attribute_Definition:
Mode 1 class - First mode (particle size that occurs the most number of times) in phi units
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -5.500
Range_Domain_Maximum: 7.500
Attribute:
Attribute_Label: MODE1FREQ
Attribute_Definition: Mode 1 strength - Modal strength of the first mode in percent
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 15.17
Range_Domain_Maximum: 88.12
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: MODE2CLASS
Attribute_Definition: Mode 2 class - Second mode in phi units
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -5.50
Range_Domain_Maximum: 8.50
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: MODE2FREQ
Attribute_Definition: Mode 2 strength - Modal strength of the second mode in percent
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 38.19
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: MODE3CLASS
Attribute_Definition: Mode 3 class - Third mode in phi units
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -5.50
Range_Domain_Maximum: 3.50
Attribute_Units_of_Measure: phi
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: MODE3FREQ
Attribute_Definition: Mode 3 strength - Modal strength of the third mode in percent
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 13.36
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: NMODES
Attribute_Definition: Number of modes
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.00
Range_Domain_Maximum: 3.00
Attribute_Units_of_Measure: integer count
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: PHIm5
Attribute_Definition:
-5 Phi - Weight percent of the sample in the -5 phi fraction (nominal diameter of particles greater than or equal to 32 mm, but less than 64 mm); very coarse pebbles
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 25.96
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: PHIm4
Attribute_Definition:
-4 Phi - Weight percent of the sample in the -4 phi fraction (nominal diameter of particles greater than or equal to 16 mm, but less than 32 mm); coarse pebbles
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 10.29
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: PHIm3
Attribute_Definition:
-3 Phi - Weight percent of the sample in the -3 phi fraction (nominal diameter of particles greater than or equal to 8 mm, but less than 16 mm); medium pebbles
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 22.18
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: PHIm2
Attribute_Definition:
-2 Phi - Weight percent of the sample in the -2 phi fraction (nominal diameter of particles greater than or equal to 4 mm, but less than 8 mm); fine pebbles
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 32.75
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: PHIm1
Attribute_Definition:
-1 Phi - Weight percent of the sample in the -1 phi fraction (nominal diameter of particles greater than or equal to 2 mm, but less than 4 mm); very fine pebbles (granules)
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 47.23
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: PHI_0
Attribute_Definition:
0 Phi - Weight percent of the sample in the 0 phi fraction (nominal diameters of particles greater than or equal to 1 mm, but less than 2 mm); very coarse sand
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 43.29
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: PHI_1
Attribute_Definition:
1 Phi - Weight percent of the sample in the 1 phi fraction (nominal diameter of particles greater than or equal to 0.5 mm, but less than 1 mm); coarse sand
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 67.31
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: PHI_2
Attribute_Definition:
2 Phi - Weight percent of the sample in the 2 phi fraction (nominal diameter of particles greater than or equal to 0.25 mm, but less than 0.5 mm); medium sand
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 83.04
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: PHI_3
Attribute_Definition:
3 Phi - Weight percent of the sample in the 3 phi fraction (nominal diameter of particles greater than or equal to 0.125 mm, but less than 0.25 mm); fine sand
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 85.97
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: PHI_4
Attribute_Definition:
4 Phi - Weight percent of the sample in the 4 phi fraction (nominal diameters of particles greater than or equal to .0625 mm, but less than 0.125 mm); very fine sand
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 88.12
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: PHI_5
Attribute_Definition:
5 Phi - Weight percent of the sample in the 5 phi fraction (nominal diameter of particles greater than or equal to 0.031 mm, but less than 0.0625 mm); coarse silt
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 19.07
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: PHI_6
Attribute_Definition:
6 Phi - Weight percent of the sample in the 6 phi fraction (nominal diameter of particles greater than or equal to 0.016 mm, but less than 0.031 mm); medium silt
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 11.35
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: PHI_7
Attribute_Definition:
7 Phi - Weight percent of the sample in the 7 phi fraction (nominal diameter of particles greater than or equal to 0.008 mm, but less than 0.016 mm); fine silt
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 15.41
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: PHI_8
Attribute_Definition:
8 Phi - Weight percent of the sample in the 8 phi fraction (nominal diameter of particles greater than or equal to 0.004 mm, but less than 0.008 mm); very fine silt
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 18.72
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: PHI_9
Attribute_Definition:
9 Phi - Weight percent of the sample in the 9 phi fraction (nominal diameter of particles greater than or equal to 0.002 mm, but less than 0.004 mm); coarse clay
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 17.86
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: PHI_10
Attribute_Definition:
10 Phi - Weight percent of the sample in the 10 phi fraction (nominal diameter of particles greater than or equal to 0.001 mm, but less than 0.002 mm); medium clay
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 15.44
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: PHI_11
Attribute_Definition:
11 Phi - Weight percent of the sample in the 11 phi fraction (nominal diameter of particles greater than or equal to 0.5 Ám, but less than 0.001 mm); fine clay
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.00
Range_Domain_Maximum: 8.44
Attribute_Units_of_Measure: percent
Attribute_Measurement_Resolution: .01
Attribute:
Attribute_Label: ANALYST
Attribute_Definition:
Name(usually first initial and last name) of person who performed the grain size or physical properties analysis
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 43.
Attribute:
Attribute_Label: COMMENTS
Attribute_Definition: Comments on sample collection or lithology
Attribute_Definition_Source: USGS East Coast Sediment Texture Database data dictionary
Attribute_Domain_Values:
Unrepresentable_Domain: Character string of width 66.

Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: E. Robert Thieler
Contact_Organization: U.S. Geological Survey
Contact_Position: Research Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02540-1598
Country: USA
Contact_Voice_Telephone: 508.548.8700.x2350
Contact_Facsimile_Telephone: 508.457.2310
Contact_Electronic_Mail_Address: rthieler@usgs.gov
Resource_Description: Downloadable Data
Distribution_Liability:
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials.
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: WinZip
Format_Version_Number: 9.0
Format_Information_Content:
A zip file containing the geospatial data in shapefile format and metadata describing the data set of grab samples collected along the inner continental shelf of North Carolina.
File_Decompression_Technique: use WinZip or pkUnzip
Transfer_Size: 67 KB
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <https://pubs.usgs.gov/of/2011/1015/data/samples/grabsamples.zip>
Network_Resource_Name: <https://pubs.usgs.gov/of/2011/1015/data_catalog.html>
Access_Instructions: Data are downloadable via the World Wide Web (WWW).
Fees: None

Metadata_Reference_Information:
Metadata_Date: 20110107
Metadata_Review_Date: 2011
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Emily Himmelstoss
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2262
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: ehimmelstoss@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None
Metadata_Use_Constraints: None
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.9.6 on Mon Jun 17 11:50:58 2013